DE329891C - Process for the softening of hard vulcanized fiber - Google Patents

Process for the softening of hard vulcanized fiber

Info

Publication number
DE329891C
DE329891C DE1917329891D DE329891DD DE329891C DE 329891 C DE329891 C DE 329891C DE 1917329891 D DE1917329891 D DE 1917329891D DE 329891D D DE329891D D DE 329891DD DE 329891 C DE329891 C DE 329891C
Authority
DE
Germany
Prior art keywords
vulcanized fiber
softening
hard
fiber
emulsions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1917329891D
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German (de)
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE329891C publication Critical patent/DE329891C/en
Expired legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/61Bitumen
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/66Salts, e.g. alums

Description

Verfahren zur-Weichmachung von harter Vulkanfiber. Da Vulkanfiber durch Quellenlassen von gewissen Faserstoffen in starker Chlorzinklauge und nachfolgendes Pressen erzeugt wird; war es selbstverstandlich, daB man die fertige harte Vulkanfiber durch Wiedereinlegen in-solche starke Chlorzinklauge wiéder aufweichen kann. Die so wieder weichgemachte Vulkanfiber schrumpft aber nach einiger Zeit wieder zusammen und wird wieder hart und brüchig, was auch durch nachtrâgliches ii.uBerliches O1en oder Fetten Oder Teeren nur unzulânglich verhindert werden konnte, vieil die Schutzschicht im Gebrauch rasch sich abnutzt, namentlich bei Verwendung zu Sohlen für Schuhwerk und zu Treibriemen. - -Es ist bereits bekannt, an Stelle der Chlorzinklauge zum Wiederaufquellen harter Vulkanfiber die weit billigeren. als Abfallaugen der Ammoniaksoda- und Kaligewinnung entfallenden Chlorcalcium- Oder Chlormagnesiumlaugen zu verwenden. Versuche ergaben nun, daB man zu einer gründlichen Weichmachungbarter Vulkanfiber vorteilhaft Emulsionen von Holzteer oder âhnlich wirkenden wasserabstoBenden Stoffen mit den genannten Chloridlaugen, die wegen der groflen Viskositât sowohl der Teere wie der starken Chloridlaugen sehr leicht zu erhalten sind, verwendet. Durch Einlegen der harten Vulkanfiber in solche teerigen Chloridlaugenemulsionen erzielt man gleichzeitig eine Weichmachung und Imprâgnierung der Vulkanfiber; beugt dem Schrumpfen und Hart werden auch bëi Abnutzung der Auflenseiten vor und kann gleichzeitig durch Vërwendung gewisser Teere, wie Birkenteer, der weichgemachten Vulkanfiber einen dem Leder nahekommenden Geruch erteilen. Die Emulsionen lcânnen im Verhâltnis z : z oder auch in anderem Verhâltnis von Teer und Chloridlauge angesetzt sein. Nach genügender Weichmachung zieht man die Vulkanfiberstücke aus der. Emulsion, streift sie ab und verreibt sie zur Erzielung einer glânzenden Oberfiâche noch mit Teer Oder Vaseline.Process for the softening of hard vulcanized fiber. Since vulcanized fiber by letting certain fibers swell in strong zinc chloride solution and then Pressing is produced; it was taken for granted that the finished hard vulcanized fiber should be used can be softened again by re-soaking in such strong zinc chloride solution. the Vulcanized fiber that has been plasticized in this way again shrinks after a while and becomes hard and brittle again, which is also due to subsequent external oiling or fats or tars could only be prevented inadequately, vieil the protective layer wears out quickly in use, especially when used for soles for footwear and to drive belts. - -It is already known to replace the zinc chloride solution Reswelling of hard vulcanized fibers is far cheaper. as waste eyes of the ammonia soda and potassium extraction to use calcium chloride or magnesium chlorine solutions. Experiments have now shown that bearded vulcanized fibers can be thoroughly softened advantageous emulsions of wood tar or similarly acting water-repellent substances with the above-mentioned chloride solutions, which because of the high viscosity of both the tars used as the strong chloride liquors are very easy to obtain. By inserting the hard vulcanized fiber in such tarry chloride liquor emulsions is achieved at the same time a softening and impregnation of the vulcanized fiber; prevents shrinkage and hardness are also in front of wear and tear of the front sides and can be done at the same time by using certain tars, such as birch tar, the softened volcanic fiber, which comes close to leather Grant odor. The emulsions can be used in the ratio z: z or in other Ratio of tar and chloride solution. After sufficient softening one pulls the vulcanized fiber pieces out of the. Emulsion, wipes it off and rubs it in to achieve a glossy surface with tar or vaseline.

Es ist bereits vorgeschlagen worden, Vulkanfiber in Emulsionen von einprozentiger Kalilauge mit 01 zu erweichen, aber hierbei zersetzt sich die Kalilauge mit dem in der Vulkanfiber zurückgehaltenën Chlorzink zu schleimigem Zinkoxydhydrat, yvelches die Poren verstopft und für die dünne Lauge sowie das darin emulgierte 01 vollkommen undurchdringlich ist. Es wird also das für die Weichrnachung und Weicherhaltung der Vulkanfiber so sehr notwendige Chlorzink ausgélaugt, so daB die Vulkanfiber kurz nach der Behandlung viel hârter wird als sie vor der Behandlung war.It has already been proposed to soften vulcanized fiber in emulsions of one percent caustic potash solution with 01 , but here the caustic potash solution with the zinc chloride retained in the vulcanized fiber decomposes to slimy zinc oxide hydrate, which clogs the pores and is completely impermeable to the thin alkali and the 01 emulsified in it is. The zinc chloride, which is so very necessary for softening and keeping the vulcanized fiber soft, is leached out, so that the vulcanized fiber becomes much harder shortly after the treatment than it was before the treatment.

Es sind zwar auch schon Emulsionen von Teeren mit Chlorzinklauge bekannt, die aber das gleiche spëzifische Gewicht wie die benutzten- Teere haben sollen, also ungemein dünn sind. Solche Emulsionen sind daher nicht zum Weichmachen von Vulkanfiber, sondern zur Prâparierung von Holz gegen Fâulnis vorgeschlagen; für Vulkanfiber sind sie vôllig ungeeignet.There are also already known emulsions of tars with chlorine zinc lye, but which should have the same specific weight as the tars used, so are extremely thin. Such emulsions are therefore not intended to soften Vulcanized fiber, but suggested for the preparation of wood against rot; for They are completely unsuitable for vulcanized fibers.

Claims (1)

PATENT-ANSPRUCH: Verfahren zur Wëichmachung von barter Vulkanfiber, dadurch gekennzeichnet, dai3 diese in Emulsionen vonChlorcalciam-oder Chlormagnesiumlaugen mit Holzteer û. dgl. gequollen wird.PATENT CLAIM: Process for softening bartered vulcanized fiber, characterized in that they are in emulsions of chlorocalciamine or chloromagnesium liquors with wood tar û. Like. Is swollen.
DE1917329891D 1917-12-21 1917-12-21 Process for the softening of hard vulcanized fiber Expired DE329891C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE329891T 1917-12-21

Publications (1)

Publication Number Publication Date
DE329891C true DE329891C (en) 1920-11-27

Family

ID=6187527

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1917329891D Expired DE329891C (en) 1917-12-21 1917-12-21 Process for the softening of hard vulcanized fiber

Country Status (1)

Country Link
DE (1) DE329891C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912629C (en) * 1942-07-28 1954-05-31 Dr Ernst Scheld Process for the production of leather substitute material from vulcanized fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912629C (en) * 1942-07-28 1954-05-31 Dr Ernst Scheld Process for the production of leather substitute material from vulcanized fiber

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